Abstract

Recombinant human albumin expressed inSaccharomyces cerevisiaewas compared with native human serum albumin in its physicochemical properties and in its use as a stabilizer in lyophilized preparations of thyroid-stimulating hormone (TSH), interleukin 15 (IL-15) and granulocyte colony-stimulating factor (G-CSF). Advantages of recombinant albumin include its lack of potential human contaminants and infectious agents. When used at concentrations of 0·1–0·2% (w/v), recombinant albumin was equivalent to native serum albumin in its capacity to protect immunological, biological and biochemical properties of TSH, IL-15 and G-CSF. Physiochemical characteristics of the two forms of albumin including their binding to fatty acids were also similar. The recombinant form of albumin used in this study should be considered as a suitable stabilizer in the preparation of lyophilized products and reference reagents.

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